1. Appleman, D. E., Nissen, H-U, Stewart, D. B., Clark, J. R., Dowty, E. and Huebner, J. S. Proc. Second Lunar Science Conference.
2. �ber kontinuierliche und reversible Transformationen des Anorthits (CaAl2Si2O8) zwischen 25 und 350�C
3. Christie, J. M., Lally, J. S., Heuer, A. H., Fisher, R. M., Griggs, D. T. and Radcliffe, S. V. Proc. Second Lunar Sience Conf. Vol. 1, pp.69 Geochim. Cosmochim. Acta, Suppl. 2